X K 3 1 9 0
－
C 602
Annex C Large Screen Data Waveform Graph and Format
1. C602 instrument can be connected with all kinds of large screen display produced by
Yaohua Company for use.
2. Large screen display interface is provided with 15 core connector assembly, (sharing a
socket with serial communication interface), the definition of its pin can be seen in
description of pin 9, 10 in Figure 3-4.
3. Scoreboard signal is current loop signal of 20mA constant current, serial output in binary
code, with baud rate of 600. Each frame of data has 11 bits, among which there are 1 initial
bit (0), 8 data bits (low bit ahead), 1 sign bit, and 1 stop bit (1).
4. C602 transmits a group of data every 100ms, which includes 3 frames of data. Please refer
to Figure C-1. The meanings are as follows:
First frame of data: sign bit is 0
；
X: d0, d1, d2 are positions of decimal point (0
－
3);
Y: d3
－
is the symbol of weight (1- negative; 0 – positive);
d4
－
is gross/net weight (1 – net weight; 0- gross weight);
G18, G17, G16: binary data;
Second frame of data: sign bit is 0;
G15 ~ G8: binary data;
Third frame of data: sign bit is 1;
G7 ~ G0: binary data;
G0 ~ G18: form 19-bit binary code from the lowest to the highest
